ALTA/LITTLE COTTONWOOD CANYON HRRR-DERIVED FORECAST GUIDANCE *************************************************************** * THIS IS AN EXPERIMENTAL, AUTOMATED, AND UNOFFICIAL FORECAST * *************************************************************** CREATED/MAINTAINED BY THE STEENBURGH GROUP DEPARTMENT OF ATMOSPHERIC SCIENCES UNIVERSITY OF UTAH Contact: jim.steenburgh@utah.edu WETBULBZERO, 1H QPF, ACCUM QPF DIRECTLY FROM HRRR COLLINS SNOW RATIO/H2O, MT BALDY T/RH, MT BALDY WIND, 1H SNOW, and ACCUM SNOW based on machine learning including UU RF SLR algorithm Based on 12Z 04-May-2025 intialized HRRR FORECAST HOURS 0-48 FHR VALID MOUNTAIN TIME COLLINS T MT BALDY T/RH MT BALDY WIND WETBULBZERO SLR/H2O 1H QPF / 1H SNOW / ACCUM QPF / ACCUM SNOW 0 06 AM Sun May 04 2025 34F 30F / 86% ESE 5 G 10 MPH 9900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 1 07 AM Sun May 04 2025 35F 31F / 58% E 8 G 16 MPH 9800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 2 08 AM Sun May 04 2025 36F 32F / 66% ESE 10 G 21 MPH 9900 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 3 09 AM Sun May 04 2025 37F 32F / 70% ESE 9 G 20 MPH 9900 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 4 10 AM Sun May 04 2025 39F 32F / 72% ESE 9 G 19 MPH 9900 FT 6:1 / 17% 0.00" / 0.0" 0.00" / 0.0" 5 11 AM Sun May 04 2025 41F 32F / 78% ESE 7 G 18 MPH 10100 FT 4:1 / 25% 0.00" / 0.0" 0.00" / 0.0" 6 12 PM Sun May 04 2025 43F 34F / 75% ESE 7 G 20 MPH 10100 FT 5:1 / 20% 0.00" / 0.0" 0.00" / 0.0" 7 01 PM Sun May 04 2025 40F 32F / 75% SSE 10 G 30 MPH 10200 FT 4:1 / 25% 0.00" / 0.0" 0.00" / 0.0" 8 02 PM Sun May 04 2025 44F 35F / 54% SE 6 G 19 MPH 9500 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 9 03 PM Sun May 04 2025 37F 30F / 80% SE 5 G 17 MPH 9700 FT 9:1 / 11% 0.13" / 1.2" 0.13" / 1.2" 10 04 PM Sun May 04 2025 43F 35F / 69% ESE 6 G 20 MPH 9700 FT 10:1 / 10% 0.00" / 0.0" 0.13" / 1.2" 11 05 PM Sun May 04 2025 38F 32F / 93% ESE 7 G 17 MPH 9900 FT 8:1 / 12% 0.01" / 0.1" 0.14" / 1.3" 12 06 PM Sun May 04 2025 38F 33F / 75% S 4 G 12 MPH 10100 FT 6:1 / 17% 0.03" / 0.2" 0.17" / 1.5" 13 07 PM Sun May 04 2025 38F 31F / 91% ESE 10 G 19 MPH 10100 FT 6:1 / 17% 0.00" / 0.0" 0.17" / 1.5" 14 08 PM Sun May 04 2025 37F 33F / 74% ESE 9 G 18 MPH 10100 FT 5:1 / 20% 0.01" / 0.0" 0.18" / 1.5" 15 09 PM Sun May 04 2025 35F 32F / 72% E 8 G 16 MPH 10200 FT 4:1 / 25% 0.00" / 0.0" 0.18" / 1.5" 16 10 PM Sun May 04 2025 34F 30F / 99% N 3 G 9 MPH 10100 FT 5:1 / 20% 0.00" / 0.0" 0.18" / 1.5" 17 11 PM Sun May 04 2025 34F 30F / 90% NNE 7 G 14 MPH 10100 FT 6:1 / 17% 0.00" / 0.0" 0.18" / 1.5" 18 12 AM Mon May 05 2025 34F 29F / 100% N 10 G 21 MPH 10000 FT 7:1 / 14% 0.00" / 0.0" 0.18" / 1.5" 19 01 AM Mon May 05 2025 33F 29F / 100% NNE 12 G 28 MPH 9900 FT 6:1 / 17% 0.00" / 0.0" 0.18" / 1.5" 20 02 AM Mon May 05 2025 33F 29F / 98% N 16 G 29 MPH 10200 FT 4:1 / 25% 0.00" / 0.0" 0.18" / 1.5" 21 03 AM Mon May 05 2025 33F 28F / 100% NNE 14 G 24 MPH 10200 FT 4:1 / 25% 0.01" / 0.0" 0.19" / 1.5" 22 04 AM Mon May 05 2025 34F 29F / 90% NNW 17 G 29 MPH 10100 FT 6:1 / 17% 0.01" / 0.1" 0.20" / 1.6" 23 05 AM Mon May 05 2025 34F 28F / 100% NNW 17 G 25 MPH 10100 FT 6:1 / 17% 0.00" / 0.0" 0.20" / 1.6" 24 06 AM Mon May 05 2025 33F 28F / 100% N 16 G 28 MPH 9900 FT 7:1 / 14% 0.00" / 0.0" 0.20" / 1.6" 25 07 AM Mon May 05 2025 33F 28F / 97% NE 13 G 23 MPH 10000 FT 7:1 / 14% 0.00" / 0.0" 0.20" / 1.6" 26 08 AM Mon May 05 2025 33F 28F / 100% ENE 12 G 22 MPH 9900 FT 8:1 / 12% 0.00" / 0.0" 0.20" / 1.6" 27 09 AM Mon May 05 2025 34F 29F / 100% ENE 12 G 21 MPH 9900 FT 7:1 / 14% 0.00" / 0.0" 0.20" / 1.6" 28 10 AM Mon May 05 2025 36F 28F / 100% ENE 10 G 21 MPH 10000 FT 6:1 / 17% 0.00" / 0.0" 0.20" / 1.6" 29 11 AM Mon May 05 2025 37F 29F / 98% ENE 9 G 18 MPH 10200 FT 4:1 / 25% 0.00" / 0.0" 0.20" / 1.6" 30 12 PM Mon May 05 2025 36F 30F / 100% NE 6 G 15 MPH 10300 FT 0:1 / -% 0.05" / 0.0" 0.25" / 1.6" 31 01 PM Mon May 05 2025 36F 31F / 99% E 9 G 23 MPH 10600 FT 0:1 / -% 0.24" / 0.0" 0.49" / 1.6" 32 02 PM Mon May 05 2025 36F 30F / 96% ENE 10 G 19 MPH 10900 FT 0:1 / -% 0.13" / 0.0" 0.62" / 1.6" 33 03 PM Mon May 05 2025 35F 30F / 90% ESE 14 G 31 MPH 11000 FT 0:1 / -% 0.21" / 0.0" 0.83" / 1.6" 34 04 PM Mon May 05 2025 37F 30F / 81% ESE 9 G 26 MPH 10100 FT 6:1 / 17% 0.05" / 0.3" 0.88" / 1.9" 35 05 PM Mon May 05 2025 41F 32F / 90% ESE 8 G 20 MPH 9700 FT 11:1 / 9% 0.00" / 0.0" 0.88" / 1.9" 36 06 PM Mon May 05 2025 40F 32F / 95% WNW 4 G 12 MPH 10200 FT 4:1 / 25% 0.00" / 0.0" 0.88" / 1.9" 37 07 PM Mon May 05 2025 36F 30F / 100% NW 6 G 13 MPH 10200 FT 5:1 / 20% 0.00" / 0.0" 0.88" / 1.9" 38 08 PM Mon May 05 2025 34F 29F / 100% N 11 G 20 MPH 10100 FT 5:1 / 20% 0.03" / 0.2" 0.91" / 2.1" 39 09 PM Mon May 05 2025 31F 28F / 100% NE 6 G 15 MPH 10200 FT 5:1 / 20% 0.11" / 0.6" 1.02" / 2.7" 40 10 PM Mon May 05 2025 32F 28F / 100% NE 7 G 15 MPH 10100 FT 6:1 / 17% 0.10" / 0.6" 1.12" / 3.3" 41 11 PM Mon May 05 2025 31F 27F / 100% SSE 9 G 16 MPH 10300 FT 3:1 / 33% 0.20" / 0.6" 1.32" / 3.9" 42 12 AM Tue May 06 2025 32F 29F / 99% ENE 12 G 18 MPH 10300 FT 4:1 / 25% 0.00" / 0.0" 1.32" / 3.9" 43 01 AM Tue May 06 2025 30F 27F / 100% ENE 13 G 22 MPH 10200 FT 5:1 / 20% 0.00" / 0.0" 1.32" / 3.9" 44 02 AM Tue May 06 2025 32F 29F / 96% NNE 13 G 21 MPH 9800 FT 8:1 / 12% 0.00" / 0.0" 1.32" / 3.9" 45 03 AM Tue May 06 2025 31F 27F / 87% NNE 16 G 24 MPH 9200 FT 8:1 / 12% 0.00" / 0.0" 1.32" / 3.9" 46 04 AM Tue May 06 2025 30F 27F / 82% NNE 17 G 24 MPH 9400 FT 9:1 / 11% 0.00" / 0.0" 1.32" / 3.9" 47 05 AM Tue May 06 2025 28F 25F / 87% NNW 15 G 23 MPH 8900 FT 9:1 / 11% 0.00" / 0.0" 1.32" / 3.9" 48 06 AM Tue May 06 2025 26F 24F / 88% NNW 16 G 24 MPH 8600 FT 8:1 / 12% 0.00" / 0.0" 1.32" / 3.9"